{"type":"firestarter.listing","listing":{"id":"lst_g0Y2to1X","product_name":"Moondrop Moonriver 3 Flagship Mini Portable DAC/Amp","category":"Headphone DAC/Amp","description":"MOONDROP MoonRiver 3 flagship miniature portable DAC/amp\nThe MOONDROP MoonRiver 3 is a compact USB DAC and headphone amplifier made for audiophiles who want high-resolution audio from a laptop or phone wherever life takes them. Inside its stainless steel chassis are dual Cirrus Logic CS43198 DAC chips, independent amplifier stages, and a dedicated power architecture that supports balanced output up to 4Vrms. It decodes PCM up to 32-bit / 384kHz and DSD256, drives demanding headphones through 4.4mm balanced output, and provides precise hardware volume control through a 100-step tactile knob. With interactive DSP tuning, community frequency libraries, and simultaneous PD charging, the MoonRiver 3 fits naturally into daily listening with a phone, laptop, or portable music source.\nDual Cirrus Logic DAC architecture\nThe MoonRiver 3 uses two Cirrus Logic CS43198 flagship DAC chips paired with independent dual-channel amplifier circuits. This architecture allows the DAC stage and amplification stage to operate with dedicated power regulation through five separate power chips. The result is a complete Hi-Fi signal path designed to reduce distortion, lower noise, and maintain channel separation while delivering balanced output power for demanding headphones.\n131dB dynamic range with ultra-low noise\nMeasurements from MOONDROP’s R&D lab show a dynamic range reaching 131dB and a signal-to-noise ratio exceeding 114dB. In practical terms, this means quiet passages remain clean and detailed while louder passages retain headroom without compression. The low noise floor allows subtle textures and spatial information to remain audible even with sensitive in-ear monitors.\nHigh-resolution decoding for modern audio libraries\nThe USB audio interface supports PCM up to 32-bit / 384kHz and native DSD256 decoding. When connected to a computer, smartphone, or tablet through the USB-C interface, the MoonRiver 3 functions as an external DAC that bypasses the device’s internal audio 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product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer ","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_g0Y2to1X' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Moondrop Moonriver 3 Flagship Mini Portable DAC/Amp' and a budget_max comfortably above $219.99 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}